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Elettrostatica
Quiz by rossella fanti
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10 questions
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- Q1What is the unit of electric charge?AmpereWattCoulombOhm30s
- Q2What is the unit of electric field?Joule per CoulombCoulomb per NewtonNewton per CoulombNewton30s
- Q3What is the force between two charged objects called?Nuclear forceGravitational forceElectrostatic forceMagnetic force30s
- Q4What does Coulomb's law state?The electrostatic force between two point charges is directly proportional to the square of the distance between themThe electrostatic force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between themThe electrostatic force between two charges is inversely proportional to the product of the charges and the square of the distance between themThe electrostatic force between two charges is directly proportional to the product of the charges and the distance between them30s
- Q5What is an electric dipole?A single charged objectA pair of charges of the same sign separated by a small distanceA pair of equal and opposite charges separated by a small distanceA pair of equal and opposite charges separated by a large distance30s
- Q6What is the work done in moving a charge in an electric field?The product of the charge and the electric field strengthThe product of the charge and the potential differenceThe product of the charge and the distance movedThe product of the potential difference and the electric field strength30s
- Q7What is an electric field line?A line tangent to the direction of the electric field at every pointA line that connects two charged objectsA curved line that shows the path of a charged particle in an electric fieldA line perpendicular to the direction of the electric field at every point30s
- Q8What is the net charge of an isolated system?NegativeCannot be determinedZeroPositive30s
- Q9What is the SI unit of electric potential?AmpereOhmWattVolt30s
- Q10What is the relationship between electric potential and electric field?There is no relationship between electric potential and electric fieldThe electric field is the positive gradient of the electric potentialThe electric field is the negative gradient of the electric potentialThe electric field is proportional to the electric potential30s